I've commented on the Atom spec's before in this long thread. Over 12-months ago 1.6Ghz dual Atom would encode 1080p at 16-17fps, with 533MHz FSB. The memory bus is faster now and clocks up a bit, but otherwise that haven't change much in a while. The missing feature to Atom setup is a single PCI-Express lane, so we can feed HDMI in without a big hardware effort. If as can get to 20fps with a PCI-E lane, we can do 24p/30i through SSD buffering -- it is really close.